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Finding the Fourth Proportional to 270,048.63, 405,072.74 and 80,504.18

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Solution

The fourth proportional to 270,048.63, 405,072.74 and 80,504.18 is: 120,756.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,048.63 : 405,072.74 = 80,504.18 : x
  2. Step 2: Convert to fraction form
    270,048.63/405,072.74 = 80,504.18/x
  3. Step 3: Cross multiply
    270,048.63x = 405,072.74 × 80,504.18
  4. Step 4: Simplify right side
    270,048.63x = 32,610,046,346.17
  5. Step 5: Solve for x
    x = 32,610,046,346.17/270,048.63
  6. Step 6: Final answer
    x = 120,756.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.